Water pressure cleaner



July 4, 1933'. E. LARU www@ WATER PRESSURE CLEANER Filed My 21, 1932 2O Fig.

Patented July 4, 1933 taurinol EMILE LARUE, or LAUSANNE, swlfrzsardiniav WATER PRESSURE. CLEANER .Application filed' May 21, 1932, Serial No. 612,776, and in Germany May 21, 1931.

In known travelling cleaning apparatus,

the principle is based on the sprin Kling and brushing apparatus used for roads, and are cumbrous and specially suitable for brushing t' large spaces, station entrances, works yards and so on but are not serviceable for small installations such as pavements, windows,

vertical walls, door steps andk so on not being sufhciently manipulable and of too great a l@ cost. V Y

To obviate these drawbacks, the present invention refers toa hydraulic cleaner byV water pressure, characterized in that it comprises a steel tube Ybent and curved in a hori- 15 Zontal plane with a triangular base, this tube being provided at its rear part with a fit-ting to permit its connection by means of aA ilexible tube to a water' supply under pressure and having in addition at its front parts and 20 lateral parts, Ysmall orifices for the outlet in an oblique direction of thewater under pressure towards the ground, 'the whole ofthe Vapparatusbeing mounted on wheels and the underside'gof the rear portion of the tube being provided withbrushes;'the bent tube forms at its central portion a-housing which is circular andintonwhich is removablyVv secured a reservoir provided with a small rose, beneath which can be fitted an interchange- 3G able brush, the reservoir being provided with a tubular guiding handle for the apparatus, which handle is provided with a union for its connection with the supply of water under pressure. All these parts are combined in such a manner that for use withy horizontal surfaces or iioors, the cleaning' takes place by simple projection in oblique direction, of the water under pressure, issuing through the small orifices provided for this purpose in the thickness of the tube, the adherent parts being removed by the brushes at the rear part of the n apparatus and for cleaning vertical walls, the reservoir in the centre is removed and serves for the washing or the brushing of these e5 walls.

T he accompanying drawing given by way of illustration, represents a I constructional embodiment of the apparatus according to the invention.

f 59 Fig. 1 is an elevation of the rear part, the

left hand half being a section taken approximately near the aXisof the wheels. Fig. 2 right hand half, isv a plan view of Fig. 1, the left hand half being an underside view.

ig.3 is a section taken on the line III-III of F ig. 2 showing the method of fixing the brushes to the tube.

Fig. 4l is a section taken on the line IV-IV of Fig. 2 showing the orifices of the rose or 6@ sprinkler and the oblique projection of the wat-er under pressure towards lthe ground.

Fig. 5 represents the central brush detached, to serve for the cleaning of vertical walls and for washing windows.

Fig. 6 iinally shows an exchangeable brush which can be fitted to the central reservoir (Fig. 5).

The apparatus shown comprises a steel tube 1, of generally plane form, with triangular base curved and bent forwardly into a point in the form of an Varrow head 20 and at the rear int-o two arms of acircle converging together, in the form vof a U. The front arm or limb 18 of each arc carries a wheel 2 for displacing the apparatusand beneath the rear arm or limb 19 is disposed a brush 3 serving to brush off thedirt which tends to adhere. The detail of the attachment of the brush 3 to the tube is shown at Fig. 3. Y The steel tube thus bent is connected at its extremities by a fitting 4 in the form of a T pipe, having` a nipple 'adapted to connect the apparatus by means of a flexible pipe to the distribution conduit for the water under pressure.

, It is obvious that the outlet 5 can have another form of iixing than the screw threadshown in the constructional form depicted.

The front part 20 of the tube 1 as well as the forward limbs 18 of the arcs are pierced with rows of small orifices 6 for the oblique projection towards the ground, of the water under pressure as shown in Fig. 4. The rear limbs 19 of the lateral arcs, beneath which are secured the brushes, are likewise provided with orifices 8, through which the water under pressure wets the brushes 3.

The central part ofthe tube 1 forms a housing for a circular reservoir 9 which lits between the limbs of the tube from which f1 it can be liberated by rotation, by freeing its.

eccentric portion 10 from its engagement with the union 4. The reservoir is provided with a tubular handle 11, for the guiding of the apparatus. The handle, suitably inclined, terminates in a handle proper 12 furnished with a fitting 18 for fixing a flexible pipe thereto to permit of connecting this reservoir to the water conduit for theY supply of water under pressure. The bottom 14 of the reservoir consists of a very fine sieve or of a sheet of perforated metal in the form of a watering rose. The lowerpart of the mounting of the reservoir is provided with a screw thread in which can screw a brush 15, for example of metal or bristles the b0t tom of which is perforated with orifices 16 for the passage of the water under pressure. The brush can be removed when itis a question of washing for example the walls of shop fronts in marble or painted. It can also be replaced by a brush 17 of felt or cloth (Fig. 6). y

To use the apparatus its fitting is con- '1 nected by'means of a flexiblev pipe to av conduit for water under pressure. For cleaning the ground the apparatus is displaced by rolling it in all' directions by means of the guiding handle 11. The pressure vof the water projected in the from of fine jets drives away the dust and the dirt which can also be picked up by the brush 3. For the cleaning of vertical surfaces as for instance the fronts of shops, door surrounds and sills, the cenj tral reservoir 9 (Fig. 5) is made use of which is removed from the apparatus and which is connected to the pressure water conduit by means of the flexible pipe connected to the union'13 of the handle 11. The water under pressure projects from the orifices 14 and we'ts the surfaces to be cleaned. The walls when made of granite or stone are treated with the metal brush 15 which can be screwed or fixed in any known manner beneath the reservoir 9.

The apparatus described is not cumbersome and is easy to operate. Itis particularly applicable to the cleaning of shop fronts. Its cost is moderate which makes it a necessity for all shops of moderate importance permitting the shop keepers to wash and brush in a hygienic manner their places without. raising dust which is likewise very advantageous in regard to the merchandise which may be exposed.

It is equally applicable to the cleaning of the ground as tothat of vertical walls, fronts of shops and so on without spoiling the polish or the paint of the premises and without inconveniencing the passers by.

I claim:

1. A water pressure cleaner for connection to a water supply conduit comprising a metal tubular frame, rollers supporting said frame on the ground, the tube constituting said frame being bent in a horizontal planeinto triangular form, the front of said frame being arrow-shaped, a union for connecting ends of said tubular frame, a nipple carried by said union for coupling said tubular frame with means for supplying water under pressure, at the front and sides for projection of water under pressure, the water being projected in an oblique forward movement of said frame and towards the ground, brushes carried by the rear part of said frame, and a detachable central spray carried by said frame centrally thereof.

2. In a water pressure cleaner as claimed in claim 1, a guiding tube connected with the tubular frame, a removable spray member secured to one end of said guiding tube, a handle at the other end of said guiding tube and a nipple carried by said handle for connection to asupply of water under pressure.

EMILE LARUE. 

